Beijing Multi-Site Air-Quality Data
Catalog Summary
"Hourly air pollutant measurements (PM2.5, PM10, SO₂, NO₂, CO, O₃) and meteorological data from 12 nationally controlled monitoring sites in Beijing, collected from March 2013 to February 2017 (420,768 instances).[page:1][web:74]"
Catalog Notes
Overview
The Beijing Multi-Site Air-Quality Data set contains hourly measurements of 6 main air pollutants and 6 meteorological variables from 12 nationally controlled air-quality monitoring sites across Beijing, China.[page:1][web:74]
Data Collection
- Data span from March 1, 2013, to February 28, 2017 (nearly 4 years), resulting in 420,768 hourly observations across all sites.[page:1][web:233]
- Air-quality data are from the Beijing Municipal Environmental Monitoring Center, and meteorological data for each site are matched with the nearest weather station from the China Meteorological Administration.[page:1][web:236]
- Missing values are denoted as NA in the dataset.[page:1]
Variables
- Temporal fields: year, month, day, hour for each observation.[page:1]
- Air pollutants: PM2.5 (μg/m³), PM10 (μg/m³), SO₂ (μg/m³), NO₂ (μg/m³), CO (μg/m³), O₃ (μg/m³).[page:1][web:236]
- Meteorological variables: temperature (°C), pressure (hPa), dew point (°C), precipitation (mm), wind direction, wind speed (m/s).[page:1][web:236]
- station: name of the air-quality monitoring site (12 unique locations).[page:1]
Use Cases
- Time-series forecasting of air pollution levels (PM2.5, AQI) for public health alerts.[page:1][web:233]
- Studying relationships between meteorological conditions and air-quality dynamics in urban environments.[page:1][web:236]
- Benchmarking regression and deep learning models for environmental IoT data.[page:1][web:74]
License
The UCI page specifies that this dataset is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0), allowing sharing and adaptation with appropriate credit.[page:1]
View Data Structure
To explore column names, data types, and sample rows, visit the official dataset page on UCI Machine Learning Repository.
Preview on UCI Machine Learning RepositoryCite This Dataset
Chen, S. (2017). Beijing Multi-Site Air-Quality Data. [Dataset]. UCI Machine Learning Repository. https://doi.org/10.24432/C5RK5G
Source metadata: UCI Machine Learning Repository (2017) · DOI: 10.24432/C5RK5G
Indexed by IoTDataset.com on Jan 29, 2026
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